CN108499225A - A kind of defogging equipment - Google Patents
A kind of defogging equipment Download PDFInfo
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- CN108499225A CN108499225A CN201710109122.8A CN201710109122A CN108499225A CN 108499225 A CN108499225 A CN 108499225A CN 201710109122 A CN201710109122 A CN 201710109122A CN 108499225 A CN108499225 A CN 108499225A
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- riser
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- blade
- defogging equipment
- outer barrel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/06—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by reversal of direction of flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Gas Separation By Absorption (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a kind of defogging equipments.The defogging equipment includes several demisting components, and each demisting component includes riser and outer barrel, and outer barrel is arranged in the outside of riser, and on the same axis with riser；Riser is divide into upper part and lower part in an axial direction, and top is divided into riser I, and lower part is divided into riser II, riser I and riser II and is connect by bearing；It is provided with several seams on the circumference of riser I, provided circumferentially about has blade in the riser I close to each item seam；Air inlet deflector is arranged to be uniformly provided with several air admission holes on the circumference of lower part, close to air inlet position in riser II tower trays, is connect with riser inner wall by connector；The connector is made of baffle and shaft.The defogging equipment of the present invention is simple in structure, and pressure drop is small, less scaling, easy for installation, reduces entrainment, can effectively realize gas-liquid separation, is particularly suitable for the larger occasion of gas flow fluctuations.
Description
Technical field
The present invention relates to a kind of defogging equipment, belong to the gas-liquid separation field in chemical engineering, is suitable for chemical industry and environmental protection
Gas-liquid separation process in equal fields.
Background technology
SO2It is the atmosphere pollution for causing the current priority control of the major reason of China's atmosphere pollution and China with dust
Object.Currently, mostly using wet processing greatly in field of environment protection, in wet processing flue gas desulfurization course, absorption tower is in operational process
In, it is also easy to produce " mist " that grain size is 10~60 microns, not only contains moisture, also dissolved with sulfuric acid, sulfate, SO2Deng to big compression ring
Border pollutes, while more serious corrosion is caused to exhaust tube and heat exchanger etc..Therefore, in wet desulfurizing process, purification
Gas has to demisting before leaving absorption tower.
Demister is the processing equipment that the fields such as chemical industry or environmental protection are used for gas-liquid separation.When the gas containing mist is with certain
Speed when passing through demister, can and demister internal structure bump against, and depend on the surface thereof.Demister internal structure surface
On mist, will be inside demister after weight reaches certain level by spreading and the effect of gravity can gradually be assembled
It is separated in structure.To realize gas-liquid separation.Demister is generally located at the top of absorption tower.When demister is in operational process
It is middle when causing resistance drop to increase to predetermined value because of fouling, it is necessary to start backwashing procedures and demister is rinsed, generally,
It is both needed to setting flooding nozzle in demister inlet end and exhaust end.Gas phase may be caused to lead to the serious entrainment of liquid phase at this time
Gas phase band liquid.
Class is can be divided into many types according to the purposes of demister, structure, such as mesh mist eliminator, collapser demister, eddy flow
Plate demister, electrostatic precipitator, venetian blind type demister and gravitational settling type demister etc..There are commonly mesh mist eliminator, herringbones
Plate demister, rotational flow plate defroster etc..Although mesh mist eliminator can detach general mist, mist cleaning, air-flow stream are required
Speed is smaller, and resistance drop is big, and service life is short, and equipment investment is big.Demister is generally used horizontally disposed at present, demister gas
Body flow direction is vertical with silk screen, and when gas velocity is relatively low, the mist inertia of entrainment is small, drifts in gas, cannot be collided with silk screen
It contacts and is removed, and due to being flowed in adverse current by separation drop and gas phase, gas is also easy to produce reentrainment to drop, to
Make the reduction of gas-liquid separation efficiency, and mesh mist eliminator is there is also easy blocking, the problems such as pressure drop is big.Blade type, herringbone
The baffle plate that direction is different, shape is different is installed inside demister, to form small runner, increases defogging effect, knot
Structure is more complex, and separating effect is bad.Rotational flow plate defroster is identical as gas flow by separation drop, is also easy to produce reentrainment, drop
Low demisting efficiency, and pressure drop is big, and energy consumption is higher.
The demister element that CN200410014713.X is introduced is made of baffle plate and flue gas flow field adjustment block, and baffle plate is fixed
In flue gas flow field adjustment block, the density and shape of baffle plate change according to the flow area variation of flow field parameter everywhere, from
And the flow area of air-flow in absorption tower is made to be evenly distributed.Still it does not break away from drop descent, gas-liquid counter current phenomenon,
It is also easy to produce reentrainment.
The demister that CN200920128824.1 is introduced is made of cooler, coarse defogging device and smart demister etc., coarse defogging
Device is corrugated sheet or demisting plate, and smart demister is steel wire, which changes traditional demister drop and airflow direction is inverse
The shortcomings that stream flowing, demisting efficiency is improved, but the demister structure is more complex, makes difficulty, and as a result of silk screen
Structure, demister pressure drop is larger, is also easier to block.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of defogging equipments, more in flow process by fluid
Secondary baffling, acceleration and shaving effect realize the separation of drop and gas.The defogging equipment of the present invention is simple in structure, and pressure drop is small, no
Easy fouling, it is easy for installation, reduce entrainment, can effectively realize gas-liquid separation, be particularly suitable for gas flow fluctuations compared with
Big occasion.
The defogging equipment of the present invention, including several demisting components arranged side by side, each demisting component include riser and
Outer barrel, outer barrel are arranged in the outside of riser, and on the same axis with riser；The riser is divided into up and down in an axial direction
Two parts, top are divided into riser I, and lower part is divided into riser II, and riser II is fixed on tower tray, riser I and riser
II is connected by bearing；Plate is covered in the top setting of riser I, several seams are provided on the circumference of riser I, close to each
The riser I of item seam is provided circumferentially about blade；The contour line of leaf cross-section is made of four curves, be respectively costa,
Rear line, upper limb line and lower edge line, wherein costa are located at the both ends of leaf cross-section contour line, rear line and liter with rear line
Tracheae I is connected；Upper limb line and lower edge line are between costa and rear line.Costa and rear line are circular arc line, upper limb
Line and lower edge line are one kind in circular arc line, parabola, B-spline curves or Bezier curve, preferably circular arc or Bezier curve,
When upper limb line and lower edge line are Bezier curve, the Bezier curve at preferably five control points, i.e., 5 points 4 times Bezier songs
Line；The rotation direction of the blade is identical.
It is easy for installation in order to design, it is preferred to use the identical blade of shapes and sizes in the defogging equipment of the present invention.
In the defogging equipment of the present invention, the radius of circle where the costa of leaf cross-section is the 0.01 of riser I radiuses
~1 times, the radius of circle is identical as the outer diameter of riser I where rear line.
In the defogging equipment of the present invention, the height of the blade is h, and h is 1~1.3 times that item stitches height a, preferably
Item stitches 1.1~1.2 times of height a；The length s of blade is 0.2-1 times, preferably 0.2-0.5 times of riser II diameters d；Leaf
The maximum width δ of piece is 0.02~0.5 times of length of blade s.On riser cross section, the outer wall of blade and riser I is solid
Fixed connection, lower edge line and the rear line intersection point of blade are A, and lower edge line and the costa intersection point of blade are B.Blade lower edge line and mistake
The angle of the riser radial direction of point A is γ, and γ is generally 15 °~70 °, preferably 30 °~45 °；Blade lower edge line and point B excessively
Riser radial direction between angle be η, η is generally 20 °~80 °, preferably 30 °~60 °.
In the defogging equipment of the present invention, item on riser I seam number is identical as the number of blade, and item seam with
Blade corresponds, item seam and blade generally setting 3 ~ 20, preferably 6-10.
In the defogging equipment of the present invention, the height a of item seam is 20~600mm, preferably 100~300mm；Item seam
Width b generally can be 10~200mm, preferably 20~100mm.The area that always cracks of the item seam, is the cross sections riser I
Long-pending 0.2~0.9 times, preferably the 0.3~0.7 of riser I cross-sectional areas times.
In the defogging equipment of the present invention, the bottom setting of riser II is lower to cover plate, and the bottom of riser II is less than tower tray
Certain distance, riser II tower trays are to be uniformly provided with several air admission holes on the circumference of lower part, in the riser II of air inlet position
Air inlet deflector is set on wall.The air admission hole generally setting 3 ~ 12, preferably 6-10；The cross sectional shape of air admission hole is square
Shape, ellipse, circle, trapezoidal or one or more of semicircle etc. combination, one in preferably rectangular, oval or circle
Kind or several combinations；The total sectional area of air admission hole is 0.6 ~ 1.5 times of riser II sectional areas, preferably 0.8 ~ 1.2 times, specific ruler
It is very little according to actual operating mode or design requirement, determined by those skilled in the art；Air admission hole is mutually passed through with riser II outer walls
The section for the riser outer wall that two mid point of curve lines are done up and down in line and the air inlet deflector close to air admission hole side are flat
The angle in face is θ, and θ is 10 ° ~ 60 °, preferably 20 ° ~ 35 °.The air inlet deflector is axially disposed within air inlet hole edge along riser
Edge is connect by connector with riser inner wall；The connector is made of baffle and shaft, baffle along riser it is axial with
Riser inner wall is fixedly connected, and air inlet deflector is connect by shaft with baffle, the maximum that air inlet deflector is rotated around shaft
Angle is baffle position.The rotation direction of each air inlet deflector is identical as the rotation direction of blade, and the shape of air inlet deflector can be
Rectangle, ellipse, circle, trapezoidal or one or more of semicircle etc. combination, preferably identical as the shape of air admission hole, air inlet
Deflector sectional area is 1.1 ~ 2 times of air admission hole sectional area, preferably 1.3 ~ 1.5 times.The lower capping plate（The bottoms riser II
Portion）It is 60~200mm, preferably 80~120mm to have certain distance K, distance K away from tower tray.
In the defogging equipment of the present invention, riser I blade distance from bottom tower trays have a certain distance A, and distance A is 60~
300mm, preferably 80~120mm.
In the defogging equipment of the present invention, it is 20~200mm that there are certain distance C, distance C in bearing bottom with tower tray, preferably
40~80mm.
In the defogging equipment of the present invention, riser II and tower tray airtight connection, the height of riser I is blade height h
1.1 ~ 3 times, preferably 1.2 ~ 1.5 times.The diameter of riser I and riser II and the percent opening of tower tray can be according to actual operating modes
Or design requirement, it is determined by those skilled in the art.
In the defogging equipment of the present invention, the upper capping plate and riser I, lower capping plate can be welded with riser II
Together or global formation；Blade is with riser I, baffle and riser II by being welded to connect.
In the defogging equipment of the present invention, the outer barrel is preferably cylinder, and outer barrel diameter D is riser II diameters d's
1.5-6 times, preferably 2-3 times.Upper edge the certain distance P, distance P that the upper edge of outer barrel is higher by riser I are the 1 of blade height h
~6 times, preferably 2~4 times.The lower edge of outer barrel has a certain distance B apart from tower tray, and less than the lower edge of blade, outer barrel lower edge away from
The distance B of tower tray is 5~100mm, preferably 20~50mm.The overall height H of outer barrel is 2.5~10 times of blade height h, preferably
It is 3~5 times.
In the defogging equipment of the present invention, the inner surface setting groove or protrusion, groove or protrusion and outer barrel of the outer barrel
Axis it is parallel, or can form an angle with axis.The section of the groove or protrusion can be rectangle, triangle or
The suitable shapes such as circle.
In the defogging equipment of the present invention, the inner surface of the outer barrel is preferably provided with the recessed of cross sectional shape as shown in FIG. 6
The section of slot, the groove is made of a circular arc and straight line section；The intersection point of wherein circular arc and outer tube inner surface circumference is distinguished
The tangent line of circular arc and circumference is done, the angle between tangent line is α, and α is 5 ° ~ 70 °, preferably 10 ° ~ 40 °；Circular arc and straightway intersection point
The tangent line for the circular arc that place is done and the angle of straightway are β, and β is 30 ° ~ 110 °, preferably 45 ° ~ 90 °.The depth Z of groove, i.e.,
The shortest distance on circular arc and straightway intersection point to outer tube inner surface circumference is 0.1 ~ 0.7 times of outer barrel wall thickness, preferably 0.3 ~
0.5 times；Arc length between the intersection point and straightway and the intersection point of outer tube inner surface circumference of circular arc and outer tube inner surface circumference is outer barrel
The 1/80 ~ 1/6 of inner surface circumference.
The junction of each component of defogging equipment of the present invention ensures sealing, does not generate gas leak phenomenon.
The defogging equipment of the present invention, when work, the gas of entrained drip from the air admission hole of tower tray lower end in the horizontal direction into
Enter riser II, gas phase flow direction is changed to tangential direction by radial direction after encountering air inlet deflector, due to air inlet deflector
It can rotate, therefore corner can be automatically adjusted according to the uninterrupted of gas, be conducive to gas and spiral along riser II inner walls
It flows up, enhances eddy flow effect.Partial drop collides with air inlet deflector in the process, some droplets is made to exist
Attachment and coalescence, the drop of attachment become larger on air inlet deflector, its own gravity generated of a part of larger drop surpasses
Cross gas climbing power and surface tension of liquid resultant force when, drop will be fallen along air inlet baffle surface to being detached,
Complete first time gas-liquid separation；The larger drop of another part then continues to flow with gas, along riser II and liter
Tracheae I inner wall disc spins flow up.When the gas of entrained drip is flowed up along riser, gas phase stream after capping plate is encountered
Dynamic direction changes, and horizontal or level of approximation direction is changed to by ascent direction, and droplet is due to effect of inertia and upper capping
Plate collides, and completes second of gas-liquid separation, at the same have again part droplet coalescence become larger drop, and with gas after
Afterflow is dynamic.The gas of entrained drip is stitched along horizontal or level of approximation direction by the item on riser I, since item stitches total sectional area
Less than riser sectional area, speed further increases after so that the gas of entrained drip is stitched by item.The gas of entrained drip is from item
It collides with blade after seam outflow, gas phase flow direction changes again, and the droplet not being removed passes through at blade
It is identical effect and be captured, complete third time gas-liquid separation.And due to blade profile curve be smooth transition curve, gas with
Directional velocity after any point is hit on blade is different so that gas uniformly divides between riser and outer barrel in section
Cloth avoids the generation of bias current, also reduces impact force of the gas to blade.Gas continues to flow and touch with outer tube inner wall
It hits, another changes the flow direction of gas, and gas is changed to the circumference along outer tube inner wall by more dispersed flow direction
It flows in direction.It is flowed up since the gas velocity of entrained drip is larger, and along reeded outer tube inner wall rotation is opened up, because
This will produce obvious shaving effect.The shaving effect refers to that the high-speed gas of entrained drip is revolved along outer tube inner wall
When turning to flow up, drop is constantly thrown toward outer under the action of inertia force, and drop enters groove and the circular arc in groove
Duan Yundong can make the arc surface that drop continues on groove do and smoothly move, drop is indirect since angle α is 5 ° ~ 70 °
Tactile aggregation becomes larger, until encountering, straightway is hindered, assembles the drop to become larger and is hit strongly with straightway wall surface, and is attached to
On the straightway of outer tube inner wall groove, drop continues to assemble and become larger, and then goes downstream along outer tube inner wall；And gas then continues
It keeps high speed to be flowed up along outer tube inner wall rotation, realizes gas-liquid separation again, and reduce entrainment.And entrainment liquid
The gas of drop hits blade after item seam outflow, and under the impetus of gas, riser I is by connecting bearing relative to a liter gas
Pipe II rotates, and since blade profile curve is smooth transition curve, when riser I is rotated, air drag is relatively low, strengthens
Bearing drives the rotating effect of riser I.The rotation direction of riser I and blade it is oppositely oriented, make after blade acts on
Gas continuously hit outer tube inner wall everywhere, without being merely to hit outer tube inner wall fixed position, strengthen shaving effect, simultaneously
Gas is more favorable to be uniformly distributed in outer barrel.By above-mentioned baffling, acceleration and shaving effect, make fluid in flow process
Realize the separation of drop and gas.
Application of the defogging equipment of the present invention in the absorption tower using wet desulfurizing process, generally enters riser II's
Gas velocity is 3-20m/s, and the gas velocity from item seam outflow is 10-40m/s, and the gas velocity from item seam outflow is the gas velocity into riser II
1.5 ~ 3 times.
Compared with prior art, defogging equipment of the invention has the following advantages：
1, the lower ends riser II have lower capping plate, the circumferencial direction of riser II to be uniformly provided with several air admission holes, air inlet position
Several air inlet deflectors are arranged in riser II inner walls, after so that gas is entered riser II in the horizontal direction, encounter air inlet deflector
Gas phase flow direction is set to be changed to tangential direction by radial direction, it, can be according to gas since air inlet deflector can rotate
Uninterrupted automatically adjust the corner of air inlet deflector in a certain range, be more advantageous to gas along riser II and riser
I inner walls, which spiral, to be flowed up, and eddy flow effect is enhanced, and is particularly suitable for the larger occasion of gas flow fluctuations.
2, it is connected by bearing between riser I and riser II, riser I rotates under the influence of gas, rises
The rotation direction of tracheae I is oppositely oriented with outlet rectification channel, and the gas after blade acts on is made continuously to hit outer barrel circumferential direction
Inner wall everywhere, without being merely to hit outer tube inner wall fixed position, is more advantageous to gas and is uniformly distributed in outer barrel, strengthen and scrape
Face effect, and since blade profile curve is smooth transition curve, when riser I is rotated, air drag is relatively low, strengthens bearing
Drive the rotating effect of riser I.
3, since the costa of blade and rear line are circular arc, parabola, B-spline curves or Bezier curve, curve mistake
Cross smooth, gas and directional velocity after any point is hit on blade are different so that gas riser and outer barrel it
Between be uniformly distributed in section, avoid the generation of bias current, also reduce impact force of the gas to blade.
4, the section of cylinder inner surface groove is made of a circular arc and straight line section, the high-speed gas edge of entrained drip
When outer tube inner wall rotation flows up, drop is constantly thrown toward outer under the action of inertia force, and drop enters groove and along recessed
Arc section movement in slot can make the arc surface that drop continues on groove do smooth fortune since angle α is 5 ° ~ 70 °
It is dynamic, until encounter straightway it is hindered after go downstream along outer tube inner wall, and exist without dead zone.
5, by multistage demisting, efficiently achieve the effect that demisting, effectively remove the smaller liquid of the grain size carried secretly in gas
Drop, demisting efficiency is high, reduces the harm to environment, plays the role of environmental protection.
6, gas flow uniform, flow resistance is small, and resistance reduces.
7, simple in structure, it is easy to make, it is not easy to plug and fouling, without backwash.
8, water-saving result is good, and the moisture removed from the gas of entrained drip can reduce water consumption with recycling.
Description of the drawings
Fig. 1 is the defogging equipment structural schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of riser I, blade and outer barrel section.
Fig. 3 is leaf cross-section contour line structural schematic diagram.
Fig. 4 is blade construction schematic diagram.
Fig. 5 is blade and riser I connection diagrams.
Fig. 6 is that section is the groove schematic diagram that circular arc and straightway are constituted.
Fig. 7 is the schematic cross-section of air admission hole and air inlet deflector.
In figure respectively label for：1- tower trays；2- riseies II；3- bearings；4- riseies I；5- items stitch；6- blades；It is sealed on 7-
Cover board；8- grooves or protrusion；9- outer barrels；10- costas；11- rear lines；12- upper limb lines；13- lower edge lines；14- air admission holes；
Plate is covered under 15-；16- shafts；17- baffles；18- air inlet deflectors.
Specific implementation mode
The defogging equipment of the present invention is described in further detail with reference to the accompanying drawings and examples.
The defogging equipment of the present invention, including several demisting components arranged side by side, each demisting component include riser and
Outer barrel 9, outer barrel 9 are arranged in the outside of riser, and on the same axis with riser；The riser is divided into an axial direction
Lower two parts, top are divided into riser I4, and lower part is divided into riser II2, and riser II2 is fixed on tower tray 1, riser I4 with
Riser II2 is connected by bearing 3；Plate 7 is covered in the top setting of riser I4, several are provided on the circumference of riser I4
Seam 5 provided circumferentially about has blade 6 in the riser I4 close to each item seam 5；The contour line of 6 cross section of blade is by four curve structures
At being costa 10, rear line 11, upper limb line 12 and lower edge line 13 respectively, wherein costa 10 is located at blade 6 with rear line 11
The both ends of cross-sectional profiles line, rear line 11 are connected with riser I4；Upper limb line 12 is located at costa 10 with after with lower edge line 13
Between edge line 11.Costa 10 is circular arc line with rear line 11, and upper limb line 12 and lower edge line 13 are circular arc line, parabola, B samples
One kind in curve or Bezier curve, preferably circular arc or Bezier curve, upper limb line 12 are Bezier bent with lower edge line 13
When line, the Bezier curve at preferably five control points, i.e. 5 points 4 Bezier curves；The rotation direction of the blade 6 is identical.
It is easy for installation in order to design in the defogging equipment of the present invention, it is preferred to use the identical blade of shapes and sizes 6.
In the defogging equipment of the present invention, the radius of circle is riser I4 radiuses where the costa 10 of 6 cross section of blade
0.01~1 times, the radius of circle is identical as the outer diameter of riser I4 where rear line 11.
In the defogging equipment of the present invention, the height of the blade 6 is h, and h is 1~1.3 times that item stitches 5 height a, preferably
Stitch 5 height a for item 1.1~1.2 times；The length s of blade 6 is 0.2-1 times of riser II2 diameters d, preferably 0.2-0.5
Times；The maximum width δ of blade 6 is 0.02~0.5 times of 6 length s of blade.On riser cross section, blade 6 and riser I4
Outer wall be fixedly connected, the lower edge line 13 of blade 6 is A, lower edge line 13 and 10 intersection point of costa of blade 6 with 11 intersection point of rear line
For B.6 lower edge line 13 of blade and the angle for the riser radial direction for crossing point A are γ, and γ is generally 15 °~70 °, preferably 30 °~
45°；Angle between 6 lower edge line 13 of blade and the riser radial direction for crossing point B is η, and η is generally 20 °~80 °, preferably 30 °
~60 °.
In the defogging equipment of the present invention, item 5 numbers of seam on the riser I4 are identical as the number of blade 6, and item
Seam 5 is corresponded with blade 6, item seam 5 and the generally setting 3 ~ 20 of blade 6, preferably 6-10.
In the defogging equipment of the present invention, the height a of item seam 5 is 20~600mm, preferably 100~300mm；Item seam 5
Width b generally can be 10~200mm, preferably 20~100mm.The area that always cracks of the item seam 5 is riser I4 horizontal
0.2~0.9 times of sectional area, preferably the 0.3~0.7 of riser I4 cross-sectional areas times.
In the defogging equipment of the present invention, the bottom setting of riser II2 is lower to cover plate 15, and the bottom of riser II2 is less than
1 certain distance of tower tray, riser II2 tower trays 1 are to be uniformly provided with several air admission holes 14 on the circumference of lower part, at air admission hole 14
Air inlet deflector 18 is set on riser II2 inner walls.The air admission hole 14 generally setting 3 ~ 12, preferably 6-10；Air inlet
The cross sectional shape in hole 14 is rectangle, ellipse, circle, trapezoidal or one or more of semicircle etc. combination, preferably rectangular,
The combination of one or more of ellipse or circle；The total sectional area of air admission hole 14 is the 0.6 ~ 1.5 of riser II2 sectional areas
Times, preferably 0.8 ~ 1.2 times, specific size is determined according to actual operating mode or design requirement by those skilled in the art；Into
The section of riser outer wall that two mid point of curve lines are done up and down in stomata 14 and riser II2 outer wall intersections with it is close
The angle of 18 plane of air inlet deflector of 14 side of air admission hole is θ, and θ is 10 ° ~ 60 °, preferably 20 ° ~ 35 °.The air inlet water conservancy diversion
Plate 18 is axially disposed within 14 edge of air admission hole along riser, is connect with riser inner wall by connector；The connector by
Baffle 17 and shaft 16 form, and baffle 17 is axially fixedly connected with riser inner wall along riser, and air inlet deflector 18 is by turning
Axis 16 is connect with baffle 17, and the maximum angle that air inlet deflector 18 is rotated around shaft 16 is 17 position of baffle.Each air inlet
The rotation direction of deflector 18 is identical as the rotation direction of blade 6, and the shape of air inlet deflector 18 can be rectangle, ellipse, circle, trapezoidal
Or it is one or more of semicircle equal combine, it is preferably identical as the shape of air admission hole 14,18 sectional area of air inlet deflector be into
1.1 ~ 2 times of 14 sectional area of stomata, preferably 1.3 ~ 1.5 times.The lower capping plate 15（The bottoms riser II2）Have away from tower tray 1
Certain distance K, distance K are 60~200mm, preferably 80~120mm.
In the defogging equipment of the present invention, it is 60 that 6 distance from bottom tower tray 1 of riser I4 blades, which has certain distance A, distance A,
~300mm, preferably 80~120mm.
In the defogging equipment of the present invention, it is 20~200mm that there are certain distance C, distance C in 3 bottom of bearing with tower tray 1, preferably
For 40~80mm.
In the defogging equipment of the present invention, the height of riser II2 and 1 airtight connection of tower tray, riser I4 is 6 height of blade
1.1 ~ 3 times of h, preferably 1.2 ~ 1.5 times.The diameter of riser I4 and riser II2 and the percent opening of tower tray 1 can be according to reality
Operating mode or design requirement, determined by those skilled in the art.
In the defogging equipment of the present invention, the upper capping plate 7 and riser I4, lower capping plate 15 and riser II2 can
To weld together or global formation；Blade 6 and riser I4, baffle 17 and riser II2 are by being welded to connect.
In the defogging equipment of the present invention, the outer barrel 9 is preferably cylinder, and 9 diameter D of outer barrel is riser II2 diameters d's
1.5-6 times, preferably 2-3 times.Upper edge the certain distance P, distance P that the upper edge of outer barrel 9 is higher by riser I4 are 6 height h of blade
1~6 times, preferably 2~4 times.The lower edge of outer barrel 9 has certain distance B apart from tower tray 1, and less than the lower edge of blade 6, outer barrel 9
Distance B of the lower edge away from tower tray 1 is 5~100mm, preferably 20~50mm.The overall height H of outer barrel 9 be 6 height h of blade 2.5~
10 times, preferably 3~5 times.
In the defogging equipment of the present invention, the inner surface of the outer barrel 9 setting groove or protrusion 8, groove or protrusion 8 with it is outer
The axis of cylinder 9 is parallel, or can form an angle with axis.The section of the groove or protrusion 8 can be rectangle, triangle
The suitable shapes such as shape or circle.
In the defogging equipment of the present invention, the inner surface of the outer barrel 9 is preferably provided with the recessed of cross sectional shape as shown in FIG. 6
The section of slot, the groove is made of a circular arc and straight line section；The intersection point of wherein circular arc and 9 inner surface circumference of outer barrel is distinguished
The tangent line of circular arc and circumference is done, the angle between tangent line is α, and α is 5 ° ~ 70 °, preferably 10 ° ~ 40 °；Circular arc and straightway intersection point
The tangent line for the circular arc that place is done and the angle of straightway are β, and β is 30 ° ~ 110 °, preferably 45 ° ~ 90 °.The depth Z of groove, i.e.,
The shortest distance on circular arc and straightway intersection point to 9 inner surface circumference of outer barrel is 0.1 ~ 0.7 times of 9 wall thickness of outer barrel, preferably 0.3
~ 0.5 times；Arc length between the intersection point of the 9 inner surface circumference of intersection point and straightway and outer barrel of 9 inner surface circumference of circular arc and outer barrel is outer
The 1/80 ~ 1/6 of 9 inner surface circumference of cylinder.
Embodiment
Certain wet scrubber tower purifying smoke 160000Nm3/ h, wherein aobvious water concentration is 10~16g/Nm3, through demisting of the present invention
Water concentration is shown in final vacuum is less than 0.8g/Nm3, demisting efficiency is more than 92%.
Claims (16)
1. a kind of defogging equipment, including several demisting components arranged side by side, each demisting component is including riser and outer barrel, outside
Cylinder is arranged in the outside of riser, and on the same axis with riser；It is characterized in that：The riser is divided into an axial direction
Upper and lower two parts, top are divided into riser I, and lower part is divided into riser II, and riser II is fixed on tower tray, riser I and liter
Tracheae II is connected by bearing；Riser I top setting on cover plate, several seams are provided on the circumference of riser I, by
The riser I of nearly each item seam is provided circumferentially about blade；The contour line of leaf cross-section is made of four curves, is leading edge respectively
Line, rear line, upper limb line and lower edge line, wherein costa are located at the both ends of leaf cross-section contour line, rear line with rear line
It is connected with riser I；Upper limb line and lower edge line are between costa and rear line；Costa and rear line are circular arc line,
Upper limb line and lower edge line are one kind in circular arc line, parabola, B-spline curves or Bezier curve；The bottom of riser II is set
Lower capping plate is set, the bottom of riser II is less than tower tray certain distance, and riser II tower trays on the circumference of lower part uniformly to open
There are several air admission holes, air inlet deflector is set on the riser II inner walls of air inlet position；The rotation direction of the blade is identical.
2. defogging equipment described in accordance with the claim 1, it is characterised in that：The costa and rear line be circular arc or
Bezier curve.
3. defogging equipment described in accordance with the claim 1, it is characterised in that：The costa is 5 points 4 times with rear line
Bezier curve.
4. defogging equipment described in accordance with the claim 1, it is characterised in that：, the radius of circle where the costa of leaf cross-section
It it is 0.01~1 times of riser I radiuses, the radius of circle is identical as the outer diameter of riser I where rear line.
5. defogging equipment described in accordance with the claim 1, it is characterised in that：The height of the blade is that h is item seam height a
1~1.3 times；The length s of blade is 0.2-1 times of riser II diameters d；The maximum width δ of blade is the 0.02 of length of blade s
~0.5 times.
6. defogging equipment described in accordance with the claim 1, it is characterised in that：The lower edge line of blade is A, blade with rear line intersection point
Lower edge line and costa intersection point be B, the angle of blade lower edge line and the riser radial direction for crossing point A be γ be 15 °~
70 °, the angle η between blade lower edge line and the riser radial direction for crossing point B is 20 °~80 °.
7. defogging equipment described in accordance with the claim 1, it is characterised in that：Item seam number on the riser I and blade
Number it is identical, item seam is arranged 3 ~ 20 with blade number, preferably 6-10.
8. defogging equipment described in accordance with the claim 1, it is characterised in that：The area that always cracks of the item seam, is riser I
0.2~0.9 times of cross-sectional area.
9. defogging equipment described in accordance with the claim 1, it is characterised in that：The air admission hole is arranged 3 ~ 12, air admission hole
Cross sectional shape is rectangle, ellipse, circle, trapezoidal or one or more of semicircle combination；The total sectional area of air admission hole is
0.6 ~ 1.5 times of riser II sectional areas.
10. defogging equipment described in accordance with the claim 1, it is characterised in that：On in air admission hole and riser II outer wall intersections
The folder of the section for the riser outer wall that lower two mid point of curve lines are done and the air inlet deflector plane close to air admission hole side
Angle is θ, and θ is 10 ° ~ 60 °.
11. according to the defogging equipment described in claim 1 or 11, it is characterised in that：The air inlet deflector is along riser axis
To being arranged in air inlet bore edges, it is connect with riser inner wall by connector；The connector is made of baffle and shaft, gear
Plate is fixedly connected with riser inner wall along riser is axial, and air inlet deflector is connect by shaft with baffle, air inlet deflector around
The maximum angle for shaft rotation is baffle position.
12. defogging equipment described in accordance with the claim 1, it is characterised in that：The rotation direction of the rotation direction and blade of each air inlet deflector
Identical, the shape of air inlet deflector is rectangle, ellipse, circle, trapezoidal or one or more of semicircle combination, into conductance
Flowing plate sectional area is 1.1 ~ 2 times of air admission hole sectional area.
13. defogging equipment described in accordance with the claim 1, it is characterised in that：The height of riser I is the 1.1 ~ 3 of blade height h
Times.
14. defogging equipment described in accordance with the claim 1, it is characterised in that：The outer barrel is cylinder, and outer barrel diameter D is to rise
1.5-6 times of tracheae II diameters d, it is the 1 of blade height h that the upper edge of outer barrel, which is higher by upper edge the certain distance P, distance P of riser I,
~6 times, the lower edge of outer barrel has certain distance B apart from tower tray, and less than the lower edge of blade, distance B of the outer barrel lower edge away from tower tray is 5
~100mm, the overall height H of outer barrel are 2.5~10 times of blade height h.
15. defogging equipment described in accordance with the claim 1, it is characterised in that：Groove or convex is arranged in the inner surface of the outer barrel
It rises.
16. according to the defogging equipment described in claim 1 or 15, it is characterised in that：The inner surface of the outer barrel is arranged recessed
The cross sectional shape of slot is made of a circular arc and straight line section；The intersection point of wherein circular arc and outer tube inner surface circumference does circle respectively
The tangent line of arc and circumference, the angle α between tangent line are 5 ° ~ 70 °；The tangent line of the circular arc done at circular arc and straightway intersection point with it is straight
The angle of line segment is that β is 30 ° ~ 110 °；On the depth Z of groove, i.e. circular arc and straightway intersection point to outer tube inner surface circumference most
Short distance is 0.1 ~ 0.7 times of outer barrel wall thickness；The intersection point and straightway of circular arc and outer tube inner surface circumference are justified with outer tube inner surface
Arc length between the intersection point in week is the 1/80 ~ 1/6 of outer tube inner surface circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109122.8A CN108499225B (en) | 2017-02-27 | 2017-02-27 | Defogging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109122.8A CN108499225B (en) | 2017-02-27 | 2017-02-27 | Defogging equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108499225A true CN108499225A (en) | 2018-09-07 |
| CN108499225B CN108499225B (en) | 2020-01-10 |
Family
ID=63374152
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710109122.8A Active CN108499225B (en) | 2017-02-27 | 2017-02-27 | Defogging equipment |
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| Country | Link |
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| CN (1) | CN108499225B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109806673A (en) * | 2019-03-06 | 2019-05-28 | 中国石油大学(北京) | A kind of gas-liquid separation device for gas defoaming |
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| CN2242129Y (en) * | 1995-11-17 | 1996-12-11 | 天津市环境保护科学研究所 | High efficiency vortex purification dust remover |
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| EP1344559A1 (en) * | 2002-03-16 | 2003-09-17 | Rolls-Royce Plc | An air/oil separator |
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|---|---|
| CN108499225B (en) | 2020-01-10 |
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Effective date of registration: 20230825 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec (Dalian) Petrochemical Research Institute Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC Corp. |